Evidence map›Paper›PMID 28768858›Full record

ArticleJournal of virology2017

Human Metapneumovirus M2-2 Protein Acts as a Negative Regulator of Alpha Interferon Production by Plasmacytoid Dendritic Cells.

Yoshinori Kitagawa, Madoka Sakai, Mariko Funayama, Masae Itoh, Bin Gotoh

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 25 citations in OpenAlex.

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  15. IFITM3 Restricts Human Metapneumovirus Infection.The Journal of infectious diseases · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Yoshinori KitagawaDivision of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Seta, Otsu, Shiga, Japan.
Madoka SakaiDivision of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Seta, Otsu, Shiga, Japan.
Mariko FunayamaDivision of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Seta, Otsu, Shiga, Japan.
Masae ItohNagahama institute of Bio-Science and Technology, Nagahama, Shiga, Japan.
Bin GotohDivision of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Seta, Otsu, Shiga, Japan bing@belle.shiga-med.ac.jp.ORCID http://orcid.org/0000-0003-3757-6735
Shiga University of Medical Science · JPNagahama Institute of Bio-Science and Technology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human metapneumovirus (HMPV) has the ability to inhibit Toll-like receptor 7 (TLR7)- and TLR9-dependent alpha interferon (IFN-α) production by plasmacytoid dendritic cells (pDCs). However, the inhibition mechanism remains largely unknown. To identify viral proteins responsible for this inhibition, we performed a screening of HMPV open reading frames (ORFs) for the ability to block TLR7/9-dependent signaling reconstituted in HEK293T cells by transfection with myeloid differentiation factor 88 (MyD88), tumor necrosis factor receptor-associated factor 6 (TRAF6), IKKα, and IFN regulatory factor 7 (IRF7). This screening demonstrated that the M2-2 protein was the most potent inhibitor of TLR7/9-dependent IFN-α induction. A recombinant HMPV in which the M2-2 ORF was silenced indeed induced greater IFN-α production by human pDCs than wild-type HMPV did. Immunoprecipitation experiments showed direct physical association of the M2-2 protein with the inhibitory domain (ID) of IRF7. As a natural consequence of this, transfection of IRF7 lacking the ID, a constitutively active mutant, resulted in activation of the IFN-α promoter even in the presence of M2-2. Bioluminescence resonance energy transfer assays and split

Indexed as

Bioluminescence Resonance Energy Transfer TechniquesDendritic CellsGenetic Complementation TestHEK293 CellsHumansI-kappa B KinaseImmune EvasionInterferon-alphaInterferon Regulatory Factor-7Intracellular Signaling Peptides and ProteinsMetapneumovirusMyeloid Differentiation Factor 88Open Reading FramesPhosphorylationSignal TransductionTNF Receptor-Associated Factor 6CHUK protein, humanI-kappa B KinaseInterferon-alphaInterferon Regulatory Factor-7Intracellular Signaling Peptides and ProteinsIRF7 protein, humanMyeloid Differentiation Factor 88Tifab protein, humanTLR9 protein, humanTNF Receptor-Associated Factor 6Toll-Like Receptor 7Toll-Like Receptor 9Viral Proteinshuman metapneumovirusimmune evasioninterferonIRF7plasmacytoid dendritic cellTLR7

Identifiers

PMID28768858
PMCPMC5625510
OpenAlexW2739708796

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.